How do you Reverse a String in Go while Handling Runes for Unicode Characters?

Reversing Strings in Go: Handling Runes and Unicode Characters

Manipulating strings in Go can pose challenges when working with Unicode characters, which are represented as runes. Unlike C, where strings are treated as character sequences, Go handles strings as vectors of bytes. To address this, we must convert between bytes and runes to perform character-level operations.

Let's examine the code you provided:

<code class="go">func inverte() {
    var strs, aux string

    // Generate 5 strings with random characters of sizes 100, 200, 300, 400, and 500
    for i := 1; i < 6; i++ {
        strs = randomString(i * 100)
        fmt.Print(strs)

        // Attempt to reverse the characters
        for i2, j := 0, len(strs); i2 < j; i2, j = i+1, j-1 {
           aux = strs[i2]
           strs[i2] = strs[j]
           strs[j] = aux
       }
   }
}</code>

The issue in your code arises from the assignment strs[i2] = strs[j], where strs[i2] and strs[j] are both bytes. However, to swap characters, you need to work with runes. To address this, you can convert the byte values to runes using the rune function:

<code class="go">for i2, j := 0, len(strs); i2 < j; i2, j = i+1, j-1 {
    r1 := rune(strs[i2])
    r2 := rune(strs[j])
    strs[i2] = byte(r2)
    strs[j] = byte(r1)
}</code>

By converting to runes, you can perform the character-level swapping operation correctly.

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